BREAKING: Air Force Base on Lockdown

(CBSNEWS) Authorities say at least two people have been killed in an apparent murder-suicide at an Air Force base in Texas.

Bexar County sheriff's spokesman James Keith said Friday that deputies responded to reports of an active shooter at Joint Base San Antonio-Lackland, which is the home of Air Force basic training. Two bodies were found inside a room of a building there, Keith said.

It's believed the shooter is among the two dead, he said, adding that sheriff's deputies and other law enforcement officers are continuing to search the building and nearby facilities.

The base as well as three nearby schools were under lockdown following the reports of the active shooter around 8:30 a.m., CBS affiliate KENS-TV reported.

About 160 miles southwest of Lackland is Fort Hood, which in 2009 was the site of the deadliest shooting at a U.S. military base, when 13 people were killed and 31 were injured.